Dr. Eastwood Im Profile

Dr. Eastwood Im

Program/Project Manager at Jet Propulsion Lab

SPIE Involvement:

Editor | Author

Proceedings Article | 8 November 2012 Paper

Recent observations of clouds and precipitation by the airborne precipitation radar 2nd generation in support of the GPM and ACE missions

Stephen Durden, Simone Tanelli, Eastwood Im

Proceedings Volume 8523, 85230M (2012) https://doi.org/10.1117/12.977574

KEYWORDS: Radar, Reflectivity, Particles, Ku band, Clouds, Doppler effect, Ka band, Calibration, Data acquisition, Signal attenuation

Read Abstract +

Proceedings Article | 5 April 2007 Paper

Piezoelectric polymers actuators for precise shape control of large scale space antennas

Qin Chen, Don Natale, Bret Neese, Kailiang Ren, Minren Lin, Q. Zhang, Matthew Pattom, K. Wang, Houfei Fang, Eastwood Im

Proceedings Volume 6524, 65241P (2007) https://doi.org/10.1117/12.717696

KEYWORDS: Actuators, Ferroelectric polymers, Reflectors, Control systems, Antennas, Polymers, Electrodes, Control systems design, Finite element methods, Electroactive polymers

Read Abstract +

Proceedings Article | 3 October 2006 Paper

A spaceborne microwave radar system for looking inside clouds

Ralph Basilio, Eastwood Im, Mark Rokey, Deborah Vane

Proceedings Volume 6361, 63610D (2006) https://doi.org/10.1117/12.693479

KEYWORDS: Clouds, Space operations, Radar, Antennas, Atmospheric modeling, Receivers, Microwave radiation, Data modeling, Calibration, Decision support systems

Read Abstract +

Proceedings Article | 11 January 2005 Paper

Instrument concepts and technologies for future spaceborne atmospheric radars

Eastwood Im, Stephen Durden

Proceedings Volume 5659, (2005) https://doi.org/10.1117/12.579066

KEYWORDS: Antennas, Radar, Reflectors, Doppler effect, Signal processing, Clouds, Meteorology, Spherical lenses, Signal to noise ratio, Electronics

Read Abstract +

Proceedings Article | 22 December 2004 Paper

Spaceborne Doppler precipitation radar: system configurations and performance analysis

Simone Tanelli, Eastwood Im

Proceedings Volume 5654, (2004) https://doi.org/10.1117/12.579021

KEYWORDS: Doppler effect, Radar, Antennas, Signal to noise ratio, Velocity measurements, Satellites, Turbulence, Monte Carlo methods, Spectral resolution, Atmospheric particles

Read Abstract +

Proceedings Article | 22 December 2004 Paper

Backscattering enhancement with a finite beam width for millimeter-wavelength weather radars

Satoru Kobayashi, Simone Tanelli, Toshio Iguchi, Eastwood Im

Proceedings Volume 5654, (2004) https://doi.org/10.1117/12.578995

KEYWORDS: Radar, Backscatter, Reflectivity, Multiple scattering, Particles, Spherical lenses, Scattering, Antennas, Polarization, Solids

Read Abstract +

Proceedings Article | 22 December 2004 Paper

Processing of high-resolution multiparametric radar data for the Airborne Dual-Frequency Precipitation Radar APR-2

Simone Tanelli, Jonathan Meagher, Stephen Durden, Eastwood Im

Proceedings Volume 5654, (2004) https://doi.org/10.1117/12.579015

KEYWORDS: Radar, Doppler effect, Reflectivity, Calibration, Ku band, Ka band, Detection and tracking algorithms, Algorithm development, Antennas, Data processing

Read Abstract +

Proceedings Article | 16 February 2004 Paper

Dual-frequency spaceborne Doppler radar: analysis of performances in estimating latent heat fluxes

Simone Tanelli, Jonathan Meagher, Eastwood Im, Luca Facheris

Proceedings Volume 5235, (2004) https://doi.org/10.1117/12.508394

KEYWORDS: Doppler effect, Radar, Reflectivity, Velocity measurements, Clouds, Antennas, Convection, Ka band, Algorithm development, Classification systems

Read Abstract +

Proceedings Article | 30 April 2003 Paper

Spaceborne rainfall Doppler radar measurements: correction of errors induced by pointing uncertainties

Eastwood Im, Simone Tanelli, Roberto Mascelloni, Luca Facheris

Proceedings Volume 4894, (2003) https://doi.org/10.1117/12.467764

KEYWORDS: Radar, Doppler effect, Error analysis, Antennas, Satellites, Meteorology, 3D modeling, Velocity measurements, Signal attenuation, Solids

Read Abstract +

Proceedings Article | 30 April 2003 Paper

Next generation of spaceborne rain radars: science rationales and technology status

Eastwood Im, Stephen Durden, Ramesh Kakar, Christian Kummerow, Eric Smith

Proceedings Volume 4894, (2003) https://doi.org/10.1117/12.467759

KEYWORDS: Radar, Antennas, Meteorology, Doppler effect, Signal processing, Atmospheric sciences, Reflectivity, Filtering (signal processing), Satellites, Digital signal processing

Read Abstract +

Proceedings Article | 30 April 2003 Paper

DFT-based spectral moments estimators for spaceborne Doppler precipitation radars

Simone Tanelli, Eastwood Im, Luca Facheris, Eric Smith

Proceedings Volume 4894, (2003) https://doi.org/10.1117/12.467754

KEYWORDS: Doppler effect, Radar, Signal to noise ratio, Statistical analysis, Antennas, Computer simulations, Fourier transforms, Algorithm development, Advanced radar, Data acquisition

Read Abstract +

Proceedings Article | 31 January 2002 Paper

Signal processing technique for removal of NUBF induced error in spaceborne Doppler precipitation radar measurements

Simone Tanelli, Eastwood Im, Luca Facheris, Stephen Durden

Proceedings Volume 4539, (2002) https://doi.org/10.1117/12.454433

KEYWORDS: Doppler effect, Radar, Error analysis, Antennas, Signal to noise ratio, Reflectivity, Statistical analysis, Velocity measurements, Spectral resolution, Signal processing

Read Abstract +

Proceedings Article | 21 December 2000 Paper

Spaceborne radar measurements of rainfall vertical velocity

Eastwood Im, Simone Tanelli, Dino Giuli, Stephen Durden, Luca Facheris

Proceedings Volume 4152, (2000) https://doi.org/10.1117/12.410598

KEYWORDS: Radar, Doppler effect, Reflectivity, Antennas, Satellites, Particles, Statistical analysis, Meteorology, Signal processing, Signal to noise ratio

Read Abstract +

Proceedings Article | 15 December 1995 Paper

Cassini radar: instrument description and performance status

W. Johnson, Eastwood Im, Leonardo Borgarelli, Enrico Zampolini Faustini

Proceedings Volume 2583, (1995) https://doi.org/10.1117/12.228577

KEYWORDS: Radar, Space operations, Radiometry, Antennas, Decision support systems, Receivers, Calibration, Electronics, Saturn, Radar imaging

Read Abstract +

Proceedings Article | 1 August 1992 Paper

Conceptual design of a spaceborne radar for rain and cloud sensing

Eastwood Im

Proceedings Volume 1688, (1992) https://doi.org/10.1117/12.137943

KEYWORDS: Radar, Clouds, Antennas, Meteorology, Reflectivity, Atmospheric propagation, Remote sensing, Signal to noise ratio, Signal attenuation, Statistical analysis

Read Abstract +